# -*- codeing = UTF-8 -*-
# @Time : 2022/12/15 19:37
# @Author : 王一1122
# @File : 成绩输出.py
# @Software : PyCharm
score = eval(input("请输入成绩:"))
if 70 > score >= 60:
    grade = "D"
elif 80 > score >= 70:
    grade = "C"
elif 90 > score >= 80:
    grade = "B"
elif 100 >= score >= 90:
    grade = "A"
print("输入成绩属于级别{0}".format(grade))
